HEXUS.net has managed to get a look at a new GPU waterblock for the X8-series of graphics cards. Koolance have been very innovative with this design.

On the opposite side you can see Koolance's new innovation for this new series of GPU coolers. Dubbed HydraPak, it's a pierce and puncture proof container for the other side of the waterchannel. The material doesn't conduct any electricty whatsoever and cools the back side of the board with direct contact. On a flip-chip design like the X8-series, you can transfer heat away from the bottom of the GPU and to the PCB. Especially with X850 XT, that's a fearsome amount of heat to get rid of and while the X850 XT's cooler does a good job in getting direct heat away from the GPU, there's still plenty radiated from the rear.